Ordered a new HR24 to replace one that is failing (very slow channel changes, freezes (stops/starts) with ALL recorded shows. I simply want a new HR24-500 to replace my failing HR24. Am told that I must purchase through ATT/DTV. I can not find a place to purchase from ATT/DTV on the web site. I just want to buy/lease a new receiver and find it difficult. After 25 years with DirecTV I am still a loyal customer and continue to find their policies frustrating. Any advice is appreciated.